Home / 68,178.24-102,267.36-30,728.16

Finding the Fourth Proportional to 68,178.24, 102,267.36 and 30,728.16

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Solution

The fourth proportional to 68,178.24, 102,267.36 and 30,728.16 is: 46,092.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,178.24 : 102,267.36 = 30,728.16 : x
  2. Step 2: Convert to fraction form
    68,178.24/102,267.36 = 30,728.16/x
  3. Step 3: Cross multiply
    68,178.24x = 102,267.36 × 30,728.16
  4. Step 4: Simplify right side
    68,178.24x = 3,142,487,800.86
  5. Step 5: Solve for x
    x = 3,142,487,800.86/68,178.24
  6. Step 6: Final answer
    x = 46,092.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.